// $Id: buffers.h 40 2011-04-15 15:44:23Z cedric.shih@gmail.com $
/*
 * Copyright (C) 2011 Cedric Shih <cedric.shih@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef BUFFERS_H_
#define BUFFERS_H_

#include <pthread.h>
#include <sys/types.h>
#include <sys/queue.h>

#include "nio/buffers.h"

#include "buffer.h"

struct niobuffer;

struct niobuffers {
	pthread_mutex_t *lock;
	unsigned char *buffer;
	size_t offset;
	unsigned char *boundary;
	unsigned char *start;
	unsigned char *next;
	struct niobuffer_list list;
	struct niobuffer_list cache;
	struct niobuffer_item *current;
	struct niobuffers_stat stat;
};

int niobuffers_alloc(struct niobuffers *buffers, size_t len,
		struct niobuffer **ptr);

int niobuffers_release(struct niobuffers *buffers,
		struct niobuffer *buffer);

int niobuffers_remove_first(struct niobuffers *buffers);

int niobuffers_remove_last(struct niobuffers *buffers);

size_t niobuffers_available(struct niobuffers *buffers);

#endif /* BUFFERS_H_ */
